Package-sealing machine.



c. F. CHAPMAN."

PACKAGE SEALING MACHINE APPLICATION HLED NOV. 15, 1912.

7 SHEETS-SHEET I.

xgq

INVENTOR.

WITNESSES.

W F, HAW.

C. F. CHAPMAN.

PACKAGE SEALING MACHINE.

APPLICATION FILED NOV. 15, 1912.

l lfi 7 Patnted May 25, 1915.

, 7 SHEETS-SHEET 2.

flaw/1 an WW 1.6m

A TTOHNH' c. F. CHAPMAN! PACKAGE SEALING MACHINE. 'APPLICATIONVFILED NOV. 15. 1912.

;, 1,140,574. Patented May 25, 1915.

7 SHEE1 SSHEET 3.-

INVENTOB ATTORNEY.

C. F. CHAPMAN.

PACKAGE SEALLNG MACHINE. APPLICATION Hm) NOV. 15, I912.

1, 140,574. A Patented May 25, 1915.

7 SHEETSSHEET 4.

4 5 @IIVVE/VTUR." I W5, M 14 am? ATTORNEY.

c. F. CHAPMAN. PACKAGE SE ALING MACHINE. APPLICATION FILED NOV. 15, 1912.

Patented May 25, 1915.

'7 $HEETSSHEET 5.

ATTORNEY.

C. F. CHAPMAN.

PACKAGE SEALING MACHINE.

APPLICATION FILED NOV-.15, 1912.

INYENTQRI' ATTORNEX Patented May 25, 1915.

wlrflsssss: gm 6% C. F. CHAPMAN.

PACKAGE SEALING MACHINE. APPLICATION FILED N0v. 15,1912.

Patnted May 25, 1915.

7 SHEETS- SHEET I.

WINES-9E8. W 12%. Y

INVENTOB tion.

rad an PACKAGE-SEALING Erasmus.

Be it-known that I, 'CHARLEs F. CHAP- MAN, a citizen of the United States, residing at Newark, in the county of Essexand State of New Jersey, haveinvented certain Improvements in Package-Sealing Machines, of which the following is a specifica- This invention relates to the closing and sealing of the ends :of cartons and similar packages, such as'are used at the present time for containing cereals and a great vaiety of other goods, either the bottom of the package before filling the same, or the top of theipac'kage to close and seal the package after filling. I

The objects of the invention are to provide a carton-sealing machine, especially adapted to high speed operation; to provide, for this reason, such a machine in which the carton shall have a continuously forward movement during the successive operations upon it to provide automatic means to performthe various operations and deliver the sealedcarton; to obtain perfect synchronism of partsg to provide mechanisms to perform then'eceSSary functions which will not be aife'ctedfby slight variations in the size of the cartonto provide such mechanisms.

which will be readily adjustable for use with cartonsflofa different size; to provide [such mechanisms that will not be injured or interrupted by an omission in the series of cartons being sealed; to provide such mechanisms which create no drag upon the flaps of the carton to twist the same out of proper position; to retain the last folded flap in position under pressure while the adhesive sets; to provide a receptacle for the adhesive which may be readily removed for cleaning or other purposes and may be ac-- curately replaced without difficulty; to provide such means and mechanisms which are,

readily applicable to an endless conveyer of any ordinary and well-known type; to securesimplicity of constructionand operation, and to obtain other advantages and results as may be brought out in the following description.

flu the HCWHI'IDFLD)inf}; drawings, in which like numerals of reference iiniirrate the same Darts throughout the newli gluve l is a side elevation oi an endl chain carton-sealing machine ElliiJiXiXlL volition; Fin. 2 is a plan of the same; Fig. 3 is aplau o cue-of the carton-carrying do Specification of Eetters was.

m in-- vices or pockets, on larger scale; Fig. 4 is an elevation of the same viewed from the side of Fig. 3 away from the observer; Fig. 5 is an elevation of the sweep and-the plow constituting thefirst and second folders, a carton being shown dotted in its correct po- Patented May 25, 1915. a ucaaoii'nea November 15, 1912. Serial No. 731,480.

sition relative thereto, and the driving said sweep looking at the same from the right hand side of Fig. 5; Fig. 7 is a plan view of the plow with its supporting bracket; Fig, 8 is a transverse section through the upper portion of the machine showing the adhesive receptacle and a car-' ton-carrier both in elevation but each having parts sectioned to disclose details of construction; Fig. 9 is a side elevation of the adhesive receptacle with portions broken away for greater clearness; Fig. 10 is a view of the thirdfolder as seen in Fi 1, but on larger scale; Fig. 11 is a lan 0%t Fig. 12 is a-longitudina section through the same; Fig. 13, is a section on line AA of Fig. 12 ,-'looking in the direction of the arrows; 14; is a transverse section through the upper ortion ofthe machine showing the can or causing the fourth folder to close the last flap; Fig. l5'i's a similar section through the lower part of the machine showing the cam for releasing saidfourth folder from the carton; Fig. 16 is an elevation of the same as viewed in Fig. 1, and Fig. 17 is a plan of said releasing cam ona smaller scale than in. Fig. 16.

In the specific embodiment of the invention illustrated in said drawings, and particularly Figs. 1 and 2 thereof, the reference numerals l, 1 indicate the side pieces of the frame of my carton-sealing machine which supports between said side pieces and at its opposite ends pairs of sprocket wheels 2, 2 operatively connected by endless chains l, 4. Said endless chains support between them selves at spaced intervals, carriers 5 which have each a )oclet 6 adapted to receive a carton 7, and hold the same substantially perpendicular to the plane of the chains, all as clearly described in my former Patent No. 829,918 of September l, 1906.

'lhe carton 'i' is inserted into the pocket (3 of a on rrier 3 with the laps to be sealed prm he same;

jcrting upwardly therefrom, and the endless the right-hand toward the left as viewed in the second flap and is lettered 9 in the drawings; of the side flaps, which are parallel to the direction of movement of the carton,

the one nearest the observer viewing Figs.

1 and 2 will be referred to as the third flap 10, and the other flap 11 directly opposed thereto is to be designated as thelfourth flap.

The second flap-9, as the carton is carried along, is engaged and slightly bent over by a swieep or fir st folder 1,2 which is swinging rearwardly upward -toallow the first flap 8 to. pass under and then swings forward and downward after the passage of said first flap to close or fold it in the direction of and beneath the second flap '9. A plow or second folder 13 then engages the second flap 9 and closes it upon the first flap into finalposition. Simultaneously the'plow 13 spreads apart or bends outward the third and fourth flaps 10, 11, and holds them in such position until they are engaged by an adhesive applying roll 14. The carton passes on, and beyond the said adhesive roll 14 the third flap is folded over'by a third folder or brush 15 ,onto the already folded second flap.. Directly following this last fold a clamp or fourth folder 16 closes the fourth flap into place and remains upon it until the carton completes its circuit.

Describing more-in detail'these various mechanisms for folding the several flaps and directing particular attention first to the, sweep 12, reference is to be had at this time to Figs. 5 and 6 in which this device is shown in detail. A support or standard 17 is secured to theffram'e 1 of the machine by any suitable means such. as the bolts 18, 18, and-provides upon itself a transverse hear ing 19, above the path-of the carton carriers.

A shaft 20 free to rotate in said hearing but secured against longitudinal movement in any suitable and well-known manner, carries upon its one end a sprocket 21 for driving purposes, and upon its other end a crank 22., Pivotally suspended from above said crankupon a; pin 23 projecting parallel to the shaft .20 from a support 2'1 forming part of the standard 17, is the body portion 25 of the sweep having longitudinally of itself a. slot 26 receiving the pin 27 upon said crank 22, By this means I convert the rotary movement of the crank into anoscillatory or swinging movement of the sweep 25, it being noted that said sweep swings from the vertical position shown in full lines in Fig. 5 to the raised inclined position shown in dotted lines and then back.

to said vertical position. Furthermore,

the sweep other motions, and I do not wish to be understood as limiting myself to the detail arrangement and operation specifically described.

For engaging the flap of the packa -or carton, I provide on the lower end 0 the said sweep body 25 an end piece 28 the lower V engaging portion 29 of which is substantially perpendicular to the sweep. Theforwardly directed extremity thereof, adapted to first strike the flap 8, is preferably curved or bent upward as at 30 to provide a smooth engaging surface to contact with the flap. It is furthermore desirable to have the end piece 28 adjustable up and down with respect to the carton so as to be adapted to scaling packages of any desired height, andfor this purpose, I provide adjusting screws 31, 31 adapted to extend through a slot 32 in the end piece 28 to clamp the same to the sweep body. However, it will be appreciated that it is not necessary to have the adjustment specifically placed between the end piece 28 and the sweep body 22, as it might be between two portions of the. standard 17 or elsewhere and obtain practically the same result.

The plow orsecond folder 13 is shown in Fig. 5 inits proper relation to the sweep 12 and hasa nose 33 which preferably is closely adjacentto the upturned lip 30 of the end piece of the sweep when said-sweep hangs vertically downward. Referring to both Figs. 5 and 7, it will be seen that the plow comprises an outsp read body 84 appropri-.

ately reinforced by a frame 35 with ribs 36 as may be found necessary for retaining its shape and giving it, durability, said body tapering at its forward end to form the nose 33. In the preferred construction, the body of the plow is of asingle piece of sheet metal having forward corner pieces bent up-- wardly inward to provide convergingcheeks 37, 37, the extremities of said corner pieces being overlapped and secured'by any suitable means such. as the screw 38 projecting into the frame of the plow. The nose 33 is also surfaced with an extension 39 of the sheet metal bent upwardly over the nose and secured by a screw 40. The plow 13 might be made of an integral casting when so desired, instead o-fa frame and sheet metal body, as just described, but the sheet metal is preferable where it is desired to secure a smooth surface without having to machine or polish a casting.

An extension-41 of the frame 35 projects upwardly-near the forward end of the plow and a block42 which is part of a bracket 43 bridging the frame 1, 1 of the machine is I tion of he screw A the machine frame,

adapted to fit against said extension 42, so that the plow can be supported thereon by" a screw 44 put through'said extension into:

the block. It will be evident that by slotting said extension 41 of the plow for the inser- 44, adjustability of the plow can be readily secured in an up and down direction or toward and away from the carton.

Referring now to Figs; 8 and 9,it will be seenQthat spaced at a distance from the plow "bracket 43 is a pair of standards or supports 45, 46 upon the side pieces 1, 1, of each of which has an upwardly open socket 4:7 for the'reception of a hub-like support 48 projecting laterally outward from an adhesive receptacle 49 whereby the end of said receptacle which is toward the direction of travel of the conveyer is supported. The other end of the receptacle 49 is provided with a shoulder 50 and rests upon the bracket 43.

In order to clam the adhesive receptacle 7 provide upon the standfilds 4:5, 46 arms 51 through which are spondingly tapered recemes in the side walls 53 of the receptacle.

"-Rotatively mounted Within the hub-like supports 48abo've mentidned is an axle or shaft having secured to itself and adapted to rotate therewith, The length of entire width of the interior of the adhesive receptacle 49, so as to-form a front wall to v \the receptacle in connection with the sides 5? being directly 53, 53 thereof. Mounted on one end of said shaft 54, outside the standard 45, is a gear 4b by a counter shaft 57 in 55 meshing with a smaller gear 56 carried suitable bearings 58, 58 of the-standard 45, said countershaft below the shaft 5% of the roll, A sprocket 59 upon the countcrshai t 53 transmits its motion through said countershall and gears 56, 56 to the adhesive roll, and rotate the same so that its bottom tray- 33s in the same direction, as the cartons are being carried by the conveyor. By the construction of receptacle and roll just described it will readily be appreciated that when it becomes desirable to remove the receptacle, including the roll, for cleaning or other purposes, it is necessary simply to unscrew the clamping studs 52, 52 and lift the receptacle so that the supports as are clearof the soclrcts 4:7 and the gears 55 and 56 disengage.

"by a leaf spring e 'ed inner ends adapted to wedge into corthe adhesive roll 14. the roll 14 is preferably the This, of course, s

of the invention. The bottom of said adhesive receptacle 49, is formed preferably 60 secured imperviously to the lower end of the back wall 61 of the receptacle by any suitable means such as the plurality of screws 62 shown in the drawings. Said leaf spring 60 extends from the back wall 6l'to the adhesive roll 14 and bears against the same as it rotates, retaining the adhesive within the receptacle and allowing only a film of it to remain on the.

roll. In order to regulate the thickness of this film by varying the tension of the leaf spring 60 against the roll 14-, I provide a camv63 extending longitudinally of the-leaf spring 60 and lnterme 'ate of its lateral edges. This cam is operated by handles or knobs 6-1, one at each end of the cam, and to provide means for retaining the' cam in any adjusted position, I insert spring, Washers 65,

It will be noted that the plow folds the second flap 9 down into closed position upon the first flap 8, as indicated in dotted lines in Fig. 5, and also bends back, into outwardly opened position, the side flaps 10 and 11, as shown in dotted lines in Fig. 8.- The roll 14 is long enough tocxtend endwise over the said outstretched flaps 10, 11, and thus the adhesive is applied to thejnner surfaces of said outstretched flaps, as 'well as to the top of the other folded flaps, as the carton passes under, the roll 14. 5

A retaining guide or tracker 66 placed slightly above the path of the carton, see

65 between the handles 64, 6e a and the sides of the receptacle.

Figs 1 and'2, is adapted to prevent the I l opening up of the first and second flaps by their natural resiliency after leaving the ad- As the side flaps 10 and 11 clear the right position that the :loldors next to be (10- scribed are adapted to close said flaps to final position. It will. be noted in passing, however, that the resiliency of the flaps requires that they be positively held down when closed, andthat before the folding or retaining means can be removed after closing any flap, the next flap mustbe su'liiciently closed to prevent those previously closed from springing open again.

The brush or third folder 15, shown in detail in Figs. 10 to 13 .inclusive, is located at the left-hand side cl? the path of travel of the carton, just beyond the guide or tracker (36, and has a horizontal arm' 67 adapted to be passed over the lap 10 to close it and at the same time to travel. in the direction of and at the same speed with'the carton so as to create no drag on the flap 10 being folded. In order to effect this compound movement of the arm 67, I provide beneath the same a pair of parallel cranks 68, (i8, revolving in a horizontal plane and pivoted at their outer ends to said arm, one near the end of the arm away from the carton and the other at a point intermediate the ends of the arm. The arm is thus carried around in a circular orbit, although held always substantially perpendicular to the path of travel of the carton, and the outer end of the arm overlies the carton only when the cranks 68, 68 are directed toward the carton and in alinement with the arm .67 or nearly so. At this time the outer end of the arm 67 has a circular motion whose component perpendicular to the path of the carton serves to-push the flap 10 down into closed position and then withdraw the arm, the other component longitudinally pf the path of the carton, carrying the arm-along at substantially the same rate of-trav'el as the carton. The flap 10 is thus closed very quickly, and during the remainder of the."

revolution of the arm 67 the next succeeding carton is coming into position for its corresponding flap to be closed.

Evidently. the ratev of rotation of the parallel cranks 68, 68 may be proportioned to their length so that the movement will be equal to any rate of travel of carton.

The cranks 68, 68 are mounted upon and project from vertical transmission shafts 69, 69 supported in the casing or body portion 70 of the folder. These transmission shafts have upon their lower ends beveled gears 71, 71 meshing respectively with beveled gears 72, 72 on a countershait't 73, and a driving shaft .74: parallel to and spaced from said countershaft 78 has upon one end of itself a sprocket wheel 7 5 for driving and carries a gear 76 to mesh with a gear 77 secured to the countersnaft 73.

Preferably, the length of the circular path in which the carton engaging end of the arm 68 travels is twice the distance between successive cartons, and in order to secure a speed of said engaging end equal to that of the carton when the two are in engagement, I make the gears 76, 77 elliptic, as shown. Said elliptic gears are so arranged and adapted that when the end of the arm is over the carton it will be traveling at the same speed therewith and when at a diametrically opposite point of its orbit it will be traveling at four times the speed of the carton, the average speed elf-the end of the arm being twice that of the carton since it has twice as far to go.

In order to render the folder adjustable to different Widths of cartons, I construct a bracket 78 slidably adjustable upon the arm. 68 by suitable means such asa bolt 79 in a slot 80 of the bracket 78. This bracket carries the means for engaging the earton flap holder 82 loosely through an extension 86 of to close the same, and which means I have shown as a roller 81 although other engaging means might be employed, said roller be-' ing journaled horizontally and transversely of the arm 68, preferably at right angles thereto, so that it alwayslies parallel to the path of travel of the carton. In order to so cure a resilient downward pressure of the roller or other engaging means upon the flap, I prefer to mount it in a. holder 82, having arms 83, 83 to receive the ends of the roller and opposite arms 84, 84 by which it is hinged to the bracket 78 to swing up and down. .A stud 85 extends upward from said the bracket 78 and is threaded to receive 9 above said extension adjusting nuts 87, 87, whereb the normal position of the holder 82 is a justed vertically. A helical compression spring 89 upon the stud between the holder '82 and the extension 86 presses the holder yieldingly downward and tends to keep the roller in its said normal position.

A sprocket chain 90 connects the sprocket wheel 75 of this third folder or brush with both the sprocket 59 of the adhesive roll and the sprocket 21 of the sweep and also connects them with a driving sprocket 91. This driving sprocket is upon a shaft 92 supportedlas by a bracket 93on the frame 1 of the machine, see Figs. 1 and 2, and connected to the main drivin shaft 94 by means of a chain 95mand suita le sprockets therefor (not shown).

The carton carrier or pocket 5 is provided with an upper bridge portion 96, see Figs. 3, 4 and 8, which extends transversely between the tracks 97, 97 along which the carton travels, said bridge preferably having at each end a plurality of rollers 98, 98 to 'en- 106 gage said tracks 97 and hold the bridge in position, The carton is slipped into and held by, the pocket 5 depending from said. bridge portion 96, with its end having the flaps to be sealed projecting above said 110 bridge, and said projecting upper end is guided uring thesuccessive operationson itsflaps by stationary u'ide rails 99, 99 adjnstably supported on the frame 1 at the opposite sides of the carton and in, sliding engagement therewith, see Figs. 8 and 2. The fourth folder or clamp 16 comprises a yoke 100 with arms 10] 101 pivoted to the front and rear edges of the bridge 96 just described intermediate of the ends thereof. which engage the tract 97, 97, said yoke being thus adapted. to swing sidewise ot-the carton carrier and carrying between its arms adjacent to its closed end a clampingplate 102 adapted to engage the top of the carton v or be carried-away from the same. The ends of said arms 101, 101. are preferably pivoted by screws 193, 103, and adjacent to said pivoted ends, the arms are offset inwardly as at 104:, 104.- so as to bring them closer to the carton 7, and also to serve as a stop when the yoke swings to engage a carton, in case there shouldbe no carton there to stop it, as will be understood from an inspection of Figs. 14 and 15. When the yoke swings in the opposite direction, or into idle position, it engages a rest 105 as shown clearly in Fig. 8 and elsewhere; To hold the said yoke at either limit of its swing, extension springs 106, 106 extend from the yoke downward at the front and rear ends of the brid e 96, and

are secured to fixed supports 10 These springsare at their upper ends connected .to the arms 101,101 outside the same and above the points of pivoting of said arms, so that whichever way the yoke is tipped the said springs will draw it down to its limit of movement in that direction. The clamping plate 102 is pivoted between the arms 101,

1010f the yoke 100 by means of pintles 108,

and said plateis held approximately inthe proper angular relation to the yoke so that it will fall flat on the top of the carton by means of shoulders 109, 109 one adjacent to I each of said pintles and adapted to engage aco'rresponding adjacent shoulder 110 on the yoke. It will be understood that the clamping plate 102 provides a. flat undersurface and that. it has at its front edge or the edge which first approaches the package a lip 111 curled upward -so as to slide easily I upon the flap 11 to be depressed, as shown in Fig. 14. Furthermore the clamping plate carries adjacent to said lip, fingers 112, 112

. projecting forwardly from its engaging surface at opposite sides .of the same and adapted to overlie the edges of the flap so as .to hold-the same against any edgewise displacement and cause it to be bent down onto the top of the package in exact registration therewith. have slotted. portions overlying the top of the clamping plate and adjustably held by screws 113.

It will be understood that just as soon as the third folder or brush 15 has brought the third flap to closed position as shown in Fig.

12, the fourth folder operated to bend the fourth flap down upon the others and holdit there; to accomplish this provide upon the frame 1 of the machine, means for swinging the yoke 100 from the position shown in F 8 to the position shown in Fig. 11-to bring the clampingplate 102 down upon the top of the package, and these means will next be described. Projecting inward over the path of the carton carrier from the side piece of the frame opposite that upon which the third folder or brush 15 is mounted, as shown in Fig. 2, 1s a. stationary cam having a portion 11-1 whose guiding surface 115 inclines upwardly inward as shown in Figs. 2.

and 14, so as to engage'a projection 116 eentrally disposed upon :the closed end of the 4 yoke 100and force said yoke upward from These fingers preferably 0 V v as the closing cain already describedjby bridge of 'an empty cartoncarrier, if no means were provided to prevent, and since such violent action might injure something, 1 provide a second cam portion 117 whose inwardly and downwardly inclined cam Surface 118 is adapted to guide the roller or projection 116 after it leavesthe cam surface 115 and ..J ease the clamping plate 102 down onto the top of the carton, all as will be understood upon inspection of Figs. 1, 2 and 1 1. i

It will be noted that the cam surfaces 115 and 118 lie in the surface of a cylinder whose longitudinal axial line coincides with the line of pivoting of the yoke 100 upon the screws 103. After passing the said closing cam, the clamping plate 102 remains held firmly and forcibly against the top of the carton by the spring 106 until the carton hasnearly completed its circuit, so as to give the adhesive time to set suiiicientl'y. Then the said roller or projection 116 of the yoke 100 engages other means-for swinging This releasing means upon the same side frame. 1 ofthe .n achine.

means of suitable supports 120 ,adapted to I hold it rigidly, and provides a cam surface 121 against which the roller or-pro ection" 1.16 of the yokewill engage as the carrier approaches. This engagement is clearly shown in Fig. 15 of the drawing, and the cam surface 121 curves upwardly outward in the surface of a cylinder whose axiscoincides with the line of pivoting with the yoke,

so that said yoke will be swung outwardly into idle position upon its rest 105. Preferably the cam surface 121 is one wall of a groove .122 Whose other wall 123 catches'the projection or roller 116 after it passes the vertical, said wall 123 being formed by a strip 124: secured to the edge of the cam 119 with its extremity 125 projecting therebeyond as a guide. v

fibviouslmother detail forms of cams, and supporting means therefor may be used, as desired, without departing from the .spirit and scope of the invention, so long as they cllect a closii'ig and' releasing of the clamp a sweep pivoted to swing longitudinally of the path. thereof, and means for swinging the yokes 100, with its clamping plate 102 'and other parts, on each carton carrier,

which are actuated in turn by the closing,

and releasing cams on the frame of the machine as the carton carriers pass said cams. The folders for the other three flaps are all mounted on the frame, and engage the flaps as the carton passes. The third and fourth folders are, furthermore, automatically adju'stable tdslight variations in the height of the carton top such as are bound to exist even in cartons of the same size, and therefore a uniform pressure is secured on the third and fourth flaps which insures their smooth and even closing, without distortion by too great pressure or looseness because of too little.

It will be noted that the omission of a carton from any carrier will not interfere with the Working of the machine, and I desire it understood that the flaps of cartons closed by my machine can vary, as in length or number, and still be properly closed, either with the machine asI have shown it or with one or more folders detached and the others re-Iocated if necessary to preserve the sequence of operations,

Having thusdescribed the invention, what I cIaim,is:-

1. In a carton sealing machine, continuously moving means for conveying cartons, a, sweep pivoted to swing longitudinally of the path thereof, and means for swinging said sweep to and from rearwardly-retracted position and to and from forward vertical position with a motion on the forward stroke faster than that of the cartons and a mo tion on the rearward stroke slower than that of the cartons.

2. In a carton sealing); machine, continuously moving" means for conveying a carton,

said sweep to and from rearwardly retracted position and to and from forward vertical position with a faster motion on the forward stroke than on the rearward stroke.

3. In a carton sealing machine, means for conveying a carton, a support projecting beyond the path of the carton, a sweep pivoted on said support to swing longitudinally of the path of said carton, a rotary member journaled in said support, and means connocting said rotary member to said sweep to oscillate the same.

4.111 aearton sealing machine, means for conveying a carton, a support projecting beyond the path of the carton, a slotted sweep pivoted on said support to swing longitudinally of the path of said ca ntoma crank mounted in said support intermediate the ends of the slot, and means for turning said crank.

5. In a carton sealing machine, means for conveying a carton, a plow adjacent the path of the carton comprising a skeleton frame'and a sheet metal body bent over and secured to said frame, and means to adjust the plow to the path of thecarton.

6. In a carton sealingyn achine, means for; conveying a carton, andia'plow adjacent the path of the carton comprising a frame having a longitudinal portion with a nose andan upward extension near said nose, and a sheet metal body on said frame having corners bent up and secured to said eXtension.

7. In a carton sealing, machine, means forconveying a carton, and a plow adjacent the path of the carton comprising a frame having a longitudinal portion with a nose and an upward extension near 'said nose, and; sheet metalbody on said frame having portion bent up over said nose' and up wardly bent adjacent lateral corners, all i said bent-up portions being secured to said extension. 7 v

8. In a carton sealing machine, means for conveying a carton, and a plow adjacent the path of the carton comprising a frame having a longitudinal portion-with a nose and an upward extension near said nose, and a sheet metal body on said frame having its forward lateral corners bent upward and inward to provide a tapered end.

9. In a carton sealing machine, means for conveying a carton, a support extending above the path of the carton transversely thereof, a plow adjacent the puthof the carton having an extension adapted to engage said support and being :uljustable with respect thereto, and means for fixing the plow in any position to which it is adjusted.

10. In a carton sealing machine, the combination of a track and means for conveying the carton along said track, of a removable adhesive reservoir evtending across said track, an applying roll forming the front wall of said reservoir and adapted to engage the cartons, a scraper for said roll where it" leaves the reservoir, means at the end of the roll for adjusting said scraper, and means for turning said roll.

1]. In a carton sealing machine, the combination of a track'and means for conveying the carton along said track, of an adhesive reservoir extending across said track, an a plyingroll forming the front wall of said reservoir and adapted to engage the cartons, a scraper for said roll where it leaves the reservoir, a trausvcrsecam extending longitudinally beneath said scraper with finger pieces at its opposile'euds, and means for" turning said roll.,

- bination with a track and means -12. In a carton sealing machine, the com hination with a track and means for con-' veying cartons along the same, of brackets on said track providing upwardly open seats, an adhesive reservoir having hubs adapted to engage said seats and a roller mountedin said hubs, gears on said roller and a liracket adapted to intermesh, and means for driving the gear on the bracket.

13. Ina carton sealing machine, the combination with a track and means for conveying cartons along the same, of brackets on said track providing upwardly open-seats, a support spaced from said brackets, an adhesive reservoir having'hubs adapted to drop into said seats and means for engaging said support, a roller mounted in said hubs, gears on said roller and a bracket adapted to intermesh, and means for driving the gear on the bracket. I

14. In a'carton sealing machine, the comfor conveying cartons along the same, of brackets.

' s rin :closin iithe' bottom'et the reservoir"- P g g the support, a roller mounted in sai on said traclg providing upwardly open seats and arms projecting therefrom, a reservoir having hubs adapted to drop into said seats and sockets in its'sides, adjustable studs in" said arms for engaging said'sokets, gears on said roller and'a bracket adapted to intermesh, and means for driving the gear on the bracket. j

15. In a carton sealing machine, the combin'ation with a track and means for conveying cartons alon the same, ofbrackets'o'n; said track provi ing upwardly open seats and arms projecting therefrom,- a support,

rest in said eats and means for engaging-- hubs" and forming a wall of the reservoir,- a leaf;

with a free e e engaging thejmoller, means for adj ustingjt e pressure of said leaf spring againstthe roller, adjustable stu'dsin the (arms of the brackets adapted to engage the sides of the reservoir, :1 gearon the roller outside one of the brackets, a second gear on said bracket meshing with the first-mentioned gear,fand means for driving the gear on the'bracket. 1 I

16,111 'a'fcarton sealing machine, means for conveying acarton continuously along a predetermined path, a brush projecting toward said path from one side thereof and adapted to fold the adjacent side flap of the carton, and means for imparting movement. to said brush in a circular orbit having an arcuate when of itself overlying said path longitu lnally thereof, whereby thebi'ush moves with the carton in the direction oi? movement thereof throughout engagement of the brush with the flap. 17. In a carton sealing machine, means for conveying a carton continuously along a 4 m n ta mined pat a. lei-us by the brush moves with the carton in'the direction of movement of the same'throughout engagement of the brush with the flap.

18. In a carton sealing machine, means for conveying a carton continuously along a predetermined path, a brush at one side of said path substantially perpendicular thereto, and means 'for moving said brush in a,

curvilinear orbit parallel toithe top ofthe carton so that it is always substantially perpendicular to the path of he carton and moves with the-carton in t e direction of movement of the same throughout" engage ment of the brush with the flap, i

19. In a carton sealing machine, means forxconveving a carton along a predeter minedpath, a brush rejecting toward path from one side t ereof and adapted to' fold the adjacent side flap of-the carton, an i means for impartin variable movement? saidbrush in an orbit parallel to the top of; a I

a carton held bysaid'conveying'iheans.

20. In a carton sealing machine, means for conveying a carton along a*predeterpathonefside therefif and adapted to for conv'e ingiaj ca on 'alongj-a predetei re ecting toward thereof and adapted t5 path from one'si I old the adjacent-s 'eflfiap of the parallel shafts, cranks'on said she I oted to said brush, and means fox-dr ving said shafts in the same direction, 7. 11

5a brush projecting toward said J a v lit? foldvthe adjacent'side flap of the carton, 213- x pair 'o f parallel cranks pivoted to said brush, andfineans for rotatin said-cranks. 7

91211112 cartonnsea'ngmachine, means, :951.

carton, its PlV 22. Ina carton sealing machine, means 1 for conveying a carton along .a .predeter-'- mined path, a brush pro ecting toward saidpath from-one side thereof and'adnpted to fold the adjacent side flap of the carton, a pair 6f parallel cranks pivoted toss-1d brushQd'riving means, and intermeshing 'elli tical gears betweenr d means an cranks, I

.23. In a carton sealing machine, means for coni'eying a carton along a predetermined path, a brush projecting toward said path from one side thereof and adapted to fold the adjacent side flap of the carton, parallel shafts, cranks on said shafts pivoted to said brush, driving means, and elliptical gearing between said driving means and shaits, I

'24. In a carton sealing machine, means for conveying a carton along a predetermined path, a brush projecting toward said path from one side thereof and adapted to fold the adjacent side'fiap of the carton, a pair of parallel shafts, cranks on said shafts pivbrush around an orbit to carry it toward and away from the carton.

26. n a carton sealingniachine, means for conveying a carton along a predetermined path, a brush projecting toward said path from one side thereof and having at its .end a member for enga ging the adjacent side flap of a carton, said member being provided with means to adjust the same vertically to accommodate different heights of cartons and means to adjust said member horizontally to varied widths of cartons, and means for moving said brush around an orbit to carry it toward and away from the carton.

27. In a carton sealing machine, means for conveying acarton along a predetermined path, an arm projecting toward said path from one side thereof, an adjustable bracket on said arm having an upper extension, a holder hinged to said bracket to swing up and down beneath said extension, means on said holder for engaging the adjacent side flap of a carton, means limiting movement of said holder away from the extension, a

spring between said holder and extension, and means for moving said arm around an orbit to carry it toward away from the v said path of the carton.

28. In carton scaling machine, means for conveying a carton along a predetermined path, an arm. PlOjQClZlng toward said path from one side thereof, a bracket on the outer end of said arm having an upper extension, a holder hinged to said bracket to swing up and doi'vri beneath. said extension, roller mounted in. said holder for engaging the flap of a carton, means limiting movement of said holder away from the extension, a

swing between said holder and extension,

and means for moving said arm in an orbit to carry it toward and away from the said path of the carton.

f, 29. In. a carton scaling machine, the coin- .h' tion of track, a carrier adapted to travel on said track and hold a carton with its top exposed, a yoke providing arms pivoted on said carrier, a clamping plate pivoted to said arms adapted to engage'th end of the carton, and means for swinging said I yoke. 30. In a carton sealing machine, the com-' bination of a track, a carrier adapted to travel on said track and hold a carton with; its end exposed, a yoke pivoted on said carrier, means on said yoke for closing a flap' against the end of the carton, a spring for holding said yoke at either end of its range of movement, and cams upon said track pro,-

jecting into the path of said yoke; oneadapted to -swing it in one direction and the other to swing it in the opposite 'direction. I j 31. In a carton sealing machine, the combination of a track,v a carrier adapted to travel onsaid track and hold a carton with its top exposed, a yoke having its arms pivoted to said carrier, a clamping plate pivotally carried between the arms of said yoke adjacent to its closed end, said yoke adapted to swing said clamping plate against the end of a carton in the carrier or away from said carton, and means upon the track forautomatically swinging said yoke.

32. In a carton sealing machine, the combination of a track, a carrier adapted to travel on said trackarid hold a carton with its end exposed, a yoke pivoted on said car rier to swing transversely of the track, a clampingplate pivoted to said yoke to en-" gage the top of a carton in the carrier when the yoke swings ,in one direction, means upon the track for automatically swinging said yoke, and means for holding it ateither end of its throw. I 33. In a carton sealing machine, the'com- 1 bination =0f a track, a carrier adapted to travel on said track and hold a carton with its end exposed, a yoke pivoted on said carrier to swing at its closed end over the carton, means pivoted to said yoke for closing y a flap of a carton in said. carrier, means for resiliently holding; the yoke at either end of ts throw, and aneans on the track for swing ng said yoke I 3%. In a carton sealing machine, the combination of a' track, a carrier adapted to travelon said track and hold a carton with, its end exposed, yoke pivoted at the ends of its arms to said carrier to swing transversely of the track, a plate pivoted in said yoke and adapted to engage the end of a carton as the yoke swings in one direction and to be removed'therefromns-the yoke swings in the other direction, means for limizo iting movementof said plate with res leot to the yoke, means for resiliently holding the yoke at either end of its throw, and means on the track for swinging said yoke.

35. In a carton sealing machine, the comhination of a track, a carrier adapted to travel on said trackand hold the carton with its end exposed, a yoke pivoted on said, carrier to swing transversely of the track, a'clamping plate pivoted to said yoke to means on the track for swinging the said yoke.

36. In a carton sealing machine, the combination of a track, a carrier adapted to travel on said track and hold the carton With its end e rposed, a yoke pivoted on said carrier having stops on its arms adapted to engage the carrier in one direction of swinging, means on the yoke for engaging the end of a carton; extension springs'at opposite sides of theflcarrier adapted to hold the yoke against said carrier at both ends of its throw, and means on the track for engaging said yoke to swing the same.

37. In a carton sealing machine, the combination of a track, a carrier adapted to travel on said track and hold the carton with its end exposed, a swinging member pivoted to said carrier, a clamping plate pivoted to said swinging member and adapted to engage the end of a carton, means for resiliently holding said swinging member with said plate in engagement with a carton, and means on the track for automatically swinging said member as the carrier travels along.

38. In a carton sealing machine, the combination of a track, a carrier adapted to.

travel on said track and hold a carton with its top exposed, a yoke pivoted on said carrier-having means for engaging the end of a carton, and cams upon the track having surfaces to engage said yoke lying in the surface of a cylinder whose longitudinal axis coincides with the line of pivoting of the yoke.

39. In a carton sealing machine, the combination of a track, a carrier adapted to' travel on said track and hold a carton with its top exposed,a yoke pivoted on said carrier to swing transversely of the track, means on said yoke for engaging the end of a carton, and cams on said track each having a surface to engage said yoke on one side of its upright position perpendicular to the carrier and an opposite surface to engage the yoke on the opposite side of said perpendicular position, said surfaces lying in the surface of a cylinder whose longitudinal axis coincides with the line of pivoting of the yoke.

CHARLES F.

Witnesses: RUssELL M. EVERETT HOWARD P. KING.

CHAPMAN. 

